A vehicle includes a forward frame portion, a rear frame portion, and a motion control system that movably interconnects the forward frame portion and the rear frame portion. A forward acceleration of the rear frame portion resulting from a driving force imparted by a wheel supported by the rear frame portion imparts a first force onto the motion control system that counters a second force imparted on the motion control system by an acceleration of a payload supported by the forward frame portion as a result of the forward acceleration.

An automatic tilting vehicle including a pair of wheels rotatably supported by wheel carriers and laterally spaced apart and a vehicle tilting device that tilts the vehicle to the inside of a turn when turning. The vehicle tilting device includes a swing member, an actuator that swings the swing member about a swing axis, and a pair of connecting rods pivotally attached to the swing member and the wheel carriers on both lateral sides of the vehicle. Each connecting rod has a preset weakest portion that is buckled to be deformed in a preset direction in a preset area when a buckling load equal to or larger than a preset value is applied.

An automatic tilting vehicle including a pair of wheels rotatably supported by wheel carriers and laterally spaced apart and a vehicle tilting device that tilts the vehicle to the inside of a turn when turning. The vehicle tilting device includes a swing member, an actuator that swings the swing member about a swing axis, and a pair of connecting rods pivotally attached to the swing member and the wheel carriers on both lateral sides of the vehicle. Each connecting rod has a preset weakest portion that is buckled to be deformed in a preset direction in a preset area when a buckling load equal to or larger than a preset value is applied.

A bicycle and scooter hybrid is provided. A bicycle and scooter hybrid including a front wheel and a rear wheel separated by a frame. The frame containing a front frame member fused to a top first connection frame member and a lower first connection frame member at a rear midpoint. A middle frame member fused to a top second connection frame member at an upper rear midpoint, a lower second connection frame member fused at a lower rear midpoint, the top first connection frame member fused at an upper front midpoint and the lower first connection frame member fused at a lower front midpoint. A handle fused to a top of the front frame member. A carrier fused to a top of the middle frame member for providing a resting surface and a footrest affixed to a base of the middle frame member.

A bicycle and scooter hybrid is provided. A bicycle and scooter hybrid including a front wheel and a rear wheel separated by a frame. The frame containing a front frame member fused to a top first connection frame member and a lower first connection frame member at a rear midpoint. A middle frame member fused to a top second connection frame member at an upper rear midpoint, a lower second connection frame member fused at a lower rear midpoint, the top first connection frame member fused at an upper front midpoint and the lower first connection frame member fused at a lower front midpoint. A handle fused to a top of the front frame member. A carrier fused to a top of the middle frame member for providing a resting surface and a footrest affixed to a base of the middle frame member.

Some embodiments are directed to a structural element having a planar portion and at least one integral, formed edge portion. The structural element includes at least one elongated member and a formed 3-layered cardboard panel. The formed 3-layered cardboard panel includes a first and second external high density cardboard (HDC) sheet sandwiching a low density cardboard (LDC) layer between them, at least one edge-forming segment absent the second HDC sheet and the LDC layer, and planar segments flanking the edge-forming segments. An inner face of the first HDC sheet of the of the edge-forming segment is folded over and tightly associated to an external surface of the elongated member such as to envelope a top portion thereof to thereby define the formed edge portion. The planar segments is fixed to one another to define the planar portion.

A bicycle frame structure has a drop-out and includes: a fixing bracket having a rail groove formed in a frontward and rearward direction and fixed to one side of the frame; a movement member mounted to the fixing bracket to be movable forward and backward along the rail groove; a drop plate fixed to the movement member and having a drop-out formed therein for fixing a wheel; and an adjustment bolt screw-engaged by penetrating one side of the movement member. A front end of the adjustment bolt is supported by a fixing support formed in the fixing bracket. The movement member is moved along the rail groove according to rotation of the adjustment bolt.

A bicycle frame structure has a drop-out and includes: a fixing bracket having a rail groove formed in a frontward and rearward direction and fixed to one side of the frame; a movement member mounted to the fixing bracket to be movable forward and backward along the rail groove; a drop plate fixed to the movement member and having a drop-out formed therein for fixing a wheel; and an adjustment bolt screw-engaged by penetrating one side of the movement member. A front end of the adjustment bolt is supported by a fixing support formed in the fixing bracket. The movement member is moved along the rail groove according to rotation of the adjustment bolt.

An adjustable bottom bracket mechanism, comprising: a bottom bracket, an axial connection portion and a mounting portion. The bottom bracket includes at least one shaft through hole and is configured for connection of a seat tube. A lengthwise extension direction of the seat tube is defined as a first direction. The axial connection portion includes at least one axial through hole and axially corresponds to the at least one shaft through hole. The mounting portion is connected to the axial connection portion and adjustably fixedly connected to the bottom bracket in a first position or a second position. When the mounting portion is in either of the first and the second position, axes of the at least one shaft through hole and the at least one axial through hole are located on the first direction.

The present disclosure relates to a bicycle frame and associated bicycle components, and to reducing the aerodynamic drag of these. In one aspect, there is provided an elongate structural member of a bicycle frame, the member comprising a lengthwise extending leading edge, the leading edge comprising at least a pair of forwardly extending protrusions spaced apart lengthwise therealong. In one form, the protrusions comprise tubercles, a series of which are spaced apart lengthwise along the leading edge, and which further extend to at least one side of the leading edge so as to transition into a chordwise extending rib.